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Patented Mar. 6, 1894.

J. HWELK ER. BAND MACHINE (No Model.)

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UNrrn TATES ATENT Fr es.

JOSEPH WELKER, OF PAWTUCKET, RHODE ISLAND, ASSIGNOR TO HENRY S. COLE, OFSAME PLACE.

BAN D-MACHINE.

SPECIFICATION forming part of Letters Patent No. 516,141, dated March 6,1894.

Application filed December 12; 1892.

To all whom it may concern.-

Be it known that I, JOSEPH WELKER, of Pawtucket, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Band-Machines; and I hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanylng drawing, forming part of thisspecification.

This invention has reference more espe clally to improvements in holdingcarriages for band and cord twisting machines of the nature described inUnited States Letters Patent to John I. Inman, of Putnam, Connecticut,dated April 22, 1890, No. 426,383.

The object of this invention is to produce a carriage for drawing outthe loop of yarn or cord to be twisted, which will be adapted toautomatically grasp a moving belt by means of which the carriage may betraversed back and forth.

Another object of the invention is to producea carriage of the naturedescribed,which will be adapted to automatically and alternately graspand release the portions of an endless-belt traveling in oppositedirections.

The invention consists in the peculiar construction of thetraversing-carriage, carrying the clutching-mechanism, and the stops andlevers for operating the clutching-mechanism, as will hereinafter bemore fully described and pointed out in the claims.

The drawing represents portions of the traversing and holding carriagewith my improvements attached thereto,the carriage being supported byrails and driven by an endless belt.

Similar numbers of reference designate corresponding parts throughout.

In the drawing 5 indicates one of the rails on which the carriagetravels.

6 is the base of the carriage on which is carried a yarn-holder, thisbase being supported by the wheels 77 which move over the rails.Depending from the base 6 of the carriage is the member 8 provided withthe shafts 9 and 10 on which the grooved pulleys 11 and 12 arejournaled. Pivoted on the memher 8 above the pulleys are the bentclutchlng-arms 13 and 14 having the gripping-teeth Serial No. 454,817.(No model.)

15, 15 and the square-pins 16, 16. Also pivoted on'the member 8 are thelocking-arms 17 and 18 which are drawn toward the pulleys 11 and 12 bythe springs, 19, 19. In the upper ends of these locking arms 17 and 18are formed recesses to receive the square pins 16, 16 of theclutching-arms to support these arms so that their gripping-teeth willbe held away from the pulleys. On the locking-arms are also the pins 20,20 which being struck by suitable stops at the opposite ends of thetraverse the locking arms are alternately thrown and the clutching-armsreleased.

To the rail 5 is secured the stop 21, and pivoted on the carriage is thearm 22 having the stud 23 and the shoulder 21 beyond which the lowersurface of the arm is beveled away to permit of its sliding over thestop 21. The depending-rod 25 is pivoted to the arm 22 and to the lever26 which is in turn pivoted to the member 8 and has thefinger 27 whichis vibrated by the upward movement of the arm 22 and striking the pin 20of the locking arm 17 throws this arm and releases the clutchingarm 13.The arm 22 is raised from engagement with the stop 21 by means of aliftingbar 28 shown in broken lines corresponding to the releasing-rod18 described on page 8, lines 129 et seq. of the patent to Inmanheretofore referred to.

The lever 29 having the finger 30 is pivoted to the frame of the machineand to the arm 31 which is clamped to the reciprocally supported rod 32this rod being reciprocated in any usual manner during the forwardmovement of the carriage to lift the finger 30 sufficiently to allow thepin 20 of the locking-arm 18 to reach the position indicated in dottedlines, and immediately afterward to depress this finger to strike thepin 20 and throw the arm 18 away from the square pin 16to release theclutch-arm 14 from the support of that pin and allowing the clutch toengage the belt.

The endless-belt 33 is mounted on bandpulleys similar to 34 which arecarried by shafts and are driven in any usual manner; this belt isconstantly driven in the directions indicated by the arrows in thedrawing and extends between the faces of the pulleys 11 and 12 and theclutch-arms 13 and 14 which are alternately engaged with the belt whenreleased from the support of the arms 17 and 18. As the carriage reachesthe forward end of its traverse the clutch-arm 13 is struck by the pin35 supported by the machine-frame and is thrown backward sufficiently toengage the pin 16 in the notch of the arm 17, thus releasing the upperportion of the belt. At the same time the arm 18 is moved by the finger3O striking the pin 20 and allowing the clutch-arm 14 to drop and engagethe lower portion of the belt; the carriage then being drawn in thedirection the belt is moving until the end of the traverse is reachedand the clutch-arm 14 strikes the pin 36 also supported by the frame tolift this clutch-arm away from the belt andinto engagement with theupper end of the arm 18 while at the same time the finger 27, beingshifted by the lifting of the arm 22 and the connections therewith, willstrike the pin 20 on the arm 17 and force the upper end of the arm outof engagement with the square pin 16 of the clutcharm 13, and the clutcharm 13 is allowed to engage the upper portion of the belt and thecarriage is again drawn forward.

By the use of this device I am able to p erate the machine without theuse of reversing-gears for driving the belt in opposite directions andthe action of the carriage is made automatic while the power requiredfor driving the machine is greatly reduced.

with a carriage and an endless-belt for operating the same, ofclutch-arms for alternately engaging the belt, spring-operated supportsfor sustaining the clutch-arms when not in use, and stops located on themachine'for alternately shifting the supports to disengage theclutch-arms, as described.

2. The combination with the carriage 6 movable on the rails and havingthe dependingmember 8, the pulleys 11 and 12 carried by the shafts 9 and10, the clutch-arms 13 and 14 pivoted to said member and having thesquare pins 16, 16, the spring-operated locking-arms 17 and 18 havingnotches in their upper ends for engaging the pins 16, 16, the pins 20,20 on said arms 17 and 18, the pivoted-lever 26 for disengaging the arm17, and the pivoted-lever 29 for disengaging the arm 18, of theendless-belt 33 supported on drivingpulleys, and the pins or studs 35and 36 for alternately resetting the clutch-arms 13 and 14, as and forthe purpose described.

In witness whereof I have hereunto set my hand.

JOSEPH \VELKER.

WVitnesses:

JOSEPH A. MILLER, HENRY J. MILLER.

